Simulation Study on External Explode of Large Equivalent Charge on Large Buildings

Authors

Weiping Zhao, 1. The Chinese People's Liberation Army 95856, Nanjing 210028, China;;
Xiankun Ge, 1. The Chinese People's Liberation Army 95856, Nanjing 210028, China;;2. College of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
Chuanwu Liu, 1. The Chinese People's Liberation Army 95856, Nanjing 210028, China;;
Fengchun Zhu, 1. The Chinese People's Liberation Army 95856, Nanjing 210028, China;;

Abstract

Abstract: The particle algorithm in AUTODYN, Smoothed Particle Hydrodynamics (SPH), was used to simulate dynamic damage of the external explosion on large buildings, which provided a visual effect. The dynamic damage details of reinforced concrete and brick masonry structure at different time were proposed by the simulation of single component. Additionally, the overpressure of shock wave, caving velocity and kinetic energy were obtained. It shows that the caving can speed up to a maximum value of 152 m/s with the kinetic energy of 18 000 J, that means a great damage to personnel and equipment in the building. Under the same condition of external explosion, the caving velocity of brick masonry structure is 25% higher than that of concrete. The overpressure and reflective overpressure on the concrete is 76% higher than that on the brick masonry. This work provides scientific and economic prediction methods for damage assessment of buildings.

Recommended Citation

Zhao, Weiping; Ge, Xiankun; Liu, Chuanwu; and Zhu, Fengchun (2020) "Simulation Study on External Explode of Large Equivalent Charge on Large Buildings," Journal of System Simulation: Vol. 28: Iss. 8, Article 31.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss8/31

First Page

1922

Revised Date

2015-05-26

DOI Link

https://doi.org/

Last Page

1928

CLC

TP391.9

Recommended Citation

Zhao Weiping, Ge Xiankun, Liu Chuanwu, Zhu Fengchun. Simulation Study on External Explode of Large Equivalent Charge on Large Buildings[J]. Journal of System Simulation, 2016, 28(8): 1922-1928.